Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/6/2023
Index Date (NOAA-21) Time (NOAA-21) Lat,Lon (NOAA-21) SZA (NOAA-21 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 07/06/2023 23:00:48 70.51,-169.80 47.89 07/06/2023 23:01:58 70.39,-168.73 47.72 41.69 70
2 07/06/2023 23:51:22 -70.00, -1.68 132.65 07/06/2023 23:51:33 -70.00, -1.66 132.65 1.10 11
3 07/07/2023 00:42:06 69.89, 165.80 47.24 07/07/2023 00:41:00 69.91, 165.85 47.27 2.93 66
4 07/09/2023 15:17:33 70.07, -53.33 47.73 07/09/2023 15:18:35 70.04, -53.36 47.69 3.34 62
5 07/09/2023 16:08:15 -69.97, 114.13 132.37 07/09/2023 16:08:04 -69.98, 114.19 132.36 2.59 11
6 07/09/2023 16:58:49 69.33, -77.62 46.97 07/09/2023 16:57:39 69.44, -78.91 47.13 51.83 70
7 07/12/2023 07:34:26 70.05, 62.47 48.07 07/12/2023 07:35:05 70.05, 62.53 48.05 2.54 39
8 07/12/2023 08:25:07 -69.90,-129.99 132.09 07/12/2023 08:24:36 -69.89,-130.06 132.10 3.32 31
9 07/14/2023 23:00:48 -70.88, 9.62 130.67 07/14/2023 23:01:55 -70.80, 11.88 130.85 82.96 67
10 07/14/2023 23:51:17 69.99, 178.34 48.40 07/14/2023 23:51:35 69.99, 178.32 48.39 0.89 18
11 07/15/2023 00:41:59 -69.89, -14.19 131.71 07/15/2023 00:41:05 -69.88, -14.19 131.71 1.15 54
12 07/17/2023 15:17:26 -70.09, 126.66 131.07 07/17/2023 15:18:38 -70.07, 126.68 131.11 2.52 72
13 07/17/2023 16:08:09 69.94, -65.80 48.78 07/17/2023 16:08:05 69.95, -65.84 48.79 2.24 4
14 07/17/2023 16:58:49 -69.73, 101.83 131.44 07/17/2023 16:57:36 -69.80, 101.58 131.35 12.34 73

Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/6/2023
SNOs_Map_NOAA-21_LANDSAT-9_20230706.jpg

Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 07/06/2023 in txt file.

Historial Predications of SNOs between NOAA-21 and LANDSAT-9